堆栈内存溢出
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即使在属性中将其关闭，R8仍处于堆栈跟踪中

[英]R8 is still in stacktrace even though it is turned off in properties

 原文  2019-08-02 08:11:36  7   1    android/ dex/ r8/ android-d8

问题描述

I'm using android plugin 3.4.2, gradle 5.0. 我正在使用android插件3.4.2，gradle 5.0。 I turned off R8 in gradle.properties android.enableR8 = false 我在gradle.properties android.enableR8 = false关闭了R8

But I still got a stacktrace where R8 is among packages. 但是我仍然得到R8在软件包中的堆栈跟踪。

Does it mean that R8 somehow still works, or it just dexer in r8 package? 这是否意味着R8仍然可以工作，还是只是在r8包中进行了dexer处理？ I know how to fix this error, but I want to know for sure that R8 is not enabled. 我知道如何解决此错误，但我想确定要确保未启用R8。 

D8: Cannot fit requested classes in the main-dex file (# methods: 65566 > 65536)

java.lang.RuntimeException: java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: 
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:593)
        at java.util.concurrent.ForkJoinTask.reportException(ForkJoinTask.java:677)
        at java.util.concurrent.ForkJoinTask.join(ForkJoinTask.java:720)
        at com.google.common.collect.ImmutableList.forEach(ImmutableList.java:407)
        at com.android.build.gradle.internal.transforms.DexMergerTransform.transform(DexMergerTransform.java:244)
        at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:239)
        at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:235)
        at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:102)
        at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:230)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:103)
        at org.gradle.api.internal.project.taskfactory.IncrementalTaskInputsTaskAction.doExecute(IncrementalTaskInputsTaskAction.java:46)
        at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:41)
        at org.gradle.api.internal.project.taskfactory.AbstractIncrementalTaskAction.execute(AbstractIncrementalTaskAction.java:25)
        at org.gradle.api.internal.project.taskfactory.StandardTaskAction.execute(StandardTaskAction.java:28)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$5.run(ExecuteActionsTaskExecuter.java:401)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:402)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:394)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:92)
        at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:390)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:373)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.access$200(ExecuteActionsTaskExecuter.java:79)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$TaskExecution.execute(ExecuteActionsTaskExecuter.java:210)
        at org.gradle.internal.execution.steps.ExecuteStep.lambda$execute$0(ExecuteStep.java:32)
        at java.util.Optional.map(Optional.java:215)
        at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:32)
        at org.gradle.internal.execution.steps.ExecuteStep.execute(ExecuteStep.java:26)
        at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:58)
        at org.gradle.internal.execution.steps.CleanupOutputsStep.execute(CleanupOutputsStep.java:35)
        at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:48)
        at org.gradle.internal.execution.steps.ResolveInputChangesStep.execute(ResolveInputChangesStep.java:33)
        at org.gradle.internal.execution.steps.CancelExecutionStep.execute(CancelExecutionStep.java:39)
        at org.gradle.internal.execution.steps.TimeoutStep.executeWithoutTimeout(TimeoutStep.java:73)
        at org.gradle.internal.execution.steps.TimeoutStep.execute(TimeoutStep.java:54)
        at org.gradle.internal.execution.steps.CatchExceptionStep.execute(CatchExceptionStep.java:35)
        at org.gradle.internal.execution.steps.CreateOutputsStep.execute(CreateOutputsStep.java:51)
        at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:45)
        at org.gradle.internal.execution.steps.SnapshotOutputsStep.execute(SnapshotOutputsStep.java:31)
        at org.gradle.internal.execution.steps.CacheStep.executeWithoutCache(CacheStep.java:201)
        at org.gradle.internal.execution.steps.CacheStep.executeAndStoreInCache(CacheStep.java:183)
        at org.gradle.internal.execution.steps.CacheStep.lambda$executeWithCache$2(CacheStep.java:106)
        at java.util.Optional.orElseGet(Optional.java:267)
        at org.gradle.internal.execution.steps.CacheStep.lambda$executeWithCache$3(CacheStep.java:106)
        at org.gradle.internal.Try$1.apply(Try.java:59)
        at org.gradle.internal.Try$1.apply(Try.java:56)
        at org.gradle.internal.Try$Success.flatMap(Try.java:102)
        at org.gradle.internal.Try.map(Try.java:56)
        at org.gradle.internal.execution.steps.CacheStep.executeWithCache(CacheStep.java:79)
        at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:69)
        at org.gradle.internal.execution.steps.CacheStep.execute(CacheStep.java:45)
        at org.gradle.internal.execution.steps.BroadcastChangingOutputsStep.execute(BroadcastChangingOutputsStep.java:49)
        at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:43)
        at org.gradle.internal.execution.steps.StoreSnapshotsStep.execute(StoreSnapshotsStep.java:32)
        at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:38)
        at org.gradle.internal.execution.steps.RecordOutputsStep.execute(RecordOutputsStep.java:24)
        at org.gradle.internal.execution.steps.SkipUpToDateStep.executeBecause(SkipUpToDateStep.java:96)
        at org.gradle.internal.execution.steps.SkipUpToDateStep.lambda$execute$0(SkipUpToDateStep.java:89)
        at java.util.Optional.map(Optional.java:215)
        at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:54)
        at org.gradle.internal.execution.steps.SkipUpToDateStep.execute(SkipUpToDateStep.java:38)
        at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:77)
        at org.gradle.internal.execution.steps.ResolveChangesStep.execute(ResolveChangesStep.java:37)
        at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:36)
        at org.gradle.internal.execution.steps.legacy.MarkSnapshottingInputsFinishedStep.execute(MarkSnapshottingInputsFinishedStep.java:26)
        at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:90)
        at org.gradle.internal.execution.steps.ResolveCachingStateStep.execute(ResolveCachingStateStep.java:48)
        at org.gradle.internal.execution.impl.DefaultWorkExecutor.execute(DefaultWorkExecutor.java:33)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:117)
        at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionStateTaskExecuter.execute(ResolveBeforeExecutionStateTaskExecuter.java:75)
        at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:62)
        at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:108)
        at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter.execute(ResolveBeforeExecutionOutputsTaskExecuter.java:67)
        at org.gradle.api.internal.tasks.execution.StartSnapshotTaskInputsBuildOperationTaskExecuter.execute(StartSnapshotTaskInputsBuildOperationTaskExecuter.java:62)
        at org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter.execute(ResolveAfterPreviousExecutionStateTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:94)
        at org.gradle.api.internal.tasks.execution.FinalizePropertiesTaskExecuter.execute(FinalizePropertiesTaskExecuter.java:46)
        at org.gradle.api.internal.tasks.execution.ResolveTaskExecutionModeExecuter.execute(ResolveTaskExecutionModeExecuter.java:95)
        at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:57)
        at org.gradle.api.internal.tasks.execution.SkipOnlyIfTaskExecuter.execute(SkipOnlyIfTaskExecuter.java:56)
        at org.gradle.api.internal.tasks.execution.CatchExceptionTaskExecuter.execute(CatchExceptionTaskExecuter.java:36)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.executeTask(EventFiringTaskExecuter.java:73)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:52)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter$1.call(EventFiringTaskExecuter.java:49)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:416)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$CallableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:406)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$1.execute(DefaultBuildOperationExecutor.java:165)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:250)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:158)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.call(DefaultBuildOperationExecutor.java:102)
        at org.gradle.internal.operations.DelegatingBuildOperationExecutor.call(DelegatingBuildOperationExecutor.java:36)
        at org.gradle.api.internal.tasks.execution.EventFiringTaskExecuter.execute(EventFiringTaskExecuter.java:49)
        at org.gradle.execution.plan.LocalTaskNodeExecutor.execute(LocalTaskNodeExecutor.java:43)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:355)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$InvokeNodeExecutorsAction.execute(DefaultTaskExecutionGraph.java:343)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:336)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionGraph$BuildOperationAwareExecutionAction.execute(DefaultTaskExecutionGraph.java:322)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:134)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker$1.execute(DefaultPlanExecutor.java:129)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.execute(DefaultPlanExecutor.java:202)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.executeNextNode(DefaultPlanExecutor.java:193)
        at org.gradle.execution.plan.DefaultPlanExecutor$ExecutorWorker.run(DefaultPlanExecutor.java:129)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
        at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: 
        at java.util.concurrent.ForkJoinTask$AdaptedCallable.exec(ForkJoinTask.java:1431)
        at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
        at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
        at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
        at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: 
        at com.android.builder.dexing.D8DexArchiveMerger.getExceptionToRethrow(D8DexArchiveMerger.java:131)
        at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:118)
        at com.android.build.gradle.internal.transforms.DexMergerTransformCallable.call(DexMergerTransformCallable.java:102)
        at com.android.build.gradle.internal.transforms.DexMergerTransformCallable.call(DexMergerTransformCallable.java:37)
        at java.util.concurrent.ForkJoinTask$AdaptedCallable.exec(ForkJoinTask.java:1424)
        ... 4 more
Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete
        at com.android.tools.r8.utils.ExceptionUtils.withCompilationHandler(ExceptionUtils.java:81)
        at com.android.tools.r8.utils.ExceptionUtils.withD8CompilationHandler(ExceptionUtils.java:45)
        at com.android.tools.r8.D8.run(D8.java:94)
        at com.android.builder.dexing.D8DexArchiveMerger.mergeDexArchives(D8DexArchiveMerger.java:116)
        ... 7 more
Caused by: com.android.tools.r8.utils.AbortException: Error: null, Cannot fit requested classes in the main-dex file (# methods: 65566 > 65536)
        at com.android.tools.r8.utils.Reporter.failIfPendingErrors(Reporter.java:101)
        at com.android.tools.r8.utils.Reporter.fatalError(Reporter.java:72)
        at com.android.tools.r8.dex.VirtualFile.throwIfFull(VirtualFile.java:193)
        at com.android.tools.r8.dex.VirtualFile$DistributorBase.fillForMainDexList(VirtualFile.java:328)
        at com.android.tools.r8.dex.VirtualFile$FillFilesDistributor.run(VirtualFile.java:380)
        at com.android.tools.r8.dex.ApplicationWriter.distribute(ApplicationWriter.java:200)
        at com.android.tools.r8.dex.ApplicationWriter.write(ApplicationWriter.java:221)
        at com.android.tools.r8.D8.run(D8.java:215)
        at com.android.tools.r8.D8.lambda$run$1(D8.java:97)
        at com.android.tools.r8.utils.ExceptionUtils.withCompilationHandler(ExceptionUtils.java:62)
        ... 10 more

1 个解决方案

解决方案1
 3 已采纳  2019-08-03 21:11:04

Does it mean that R8 somehow still works, or it just dexer in r8 package? 这是否意味着R8仍然可以工作，还是只是在r8包中进行了dexer处理？

Your stack trace shows only D8's classes (note that D8's classes reside in com.android.tools.r8 package, which may lead to confusions). 您的堆栈跟踪仅显示D8的类（请注意，D8的类位于com.android.tools.r8包中，这可能会引起混淆）。

You can verify whether D8, D8 with Proguard or R8 will be invoked by simply looking for executed task names (all the below tests were executed with AGP 3.4.2). 您可以通过简单地查找已执行的任务名称来验证是调用D8，带Proguard的D8还是R8（以下所有测试都是使用AGP 3.4.2执行的）。

android.enableR8=false, minifyEnabled=false => D8 android.enableR8 = false，minifyEnabled = false => D8 

$ ./gradlew assembleRelease --dry-run  
// ... redacted  
:app:transformClassesWithDexBuilderForRelease SKIPPED  
// ... redacted

android.enableR8=false, minifyEnabled=true => D8 with Proguard android.enableR8 = false，minifyEnabled = true =>使用Proguard的D8 

$ ./gradlew assembleRelease --dry-run  
// ... redacted  
:app:transformClassesAndResourcesWithProguardForRelease SKIPPED  
// ... redacted

android.enableR8=false, minifyEnabled=true, useProguard=false => D8 with Proguard android.enableR8 = false，minifyEnabled = true，useProguard = false => D8与Proguard 

$ ./gradlew assembleRelease --dry-run  
// ... redacted  
:app:transformClassesAndResourcesWithProguardForRelease SKIPPED  
// ... redacted

android.enableR8=true, minifyEnabled=true => R8 android.enableR8 = true，minifyEnabled = true => R8 

$ ./gradlew assembleRelease --dry-run  
// ... redacted  
:app:transformClassesAndResourcesWithR8ForRelease SKIPPED  
// ... redacted

android.enableR8=true, minifyEnabled=true, useProguard=true => R8 android.enableR8 = true，minifyEnabled = true，useProguard = true => R8 

$ ./gradlew assembleRelease --dry-run  
// ... redacted  
:app:transformClassesAndResourcesWithR8ForRelease SKIPPED  
// ... redacted

R8 vs D8 short recap R8 vs D8简短回顾

As per documentation : 根据文档 ：

D8 is a dexer that converts java byte code to dex code. D8是将Java字节代码转换为dex代码的dexer。
R8 is a java program shrinking and minification tool that converts java byte code to optimized dex code. R8是一个Java程序缩小和缩小工具，可将Java字节代码转换为优化的dex代码。

More precise definition by Jake Wharton : 杰克·沃顿 （ Jake Wharton）更精确的定义：

R8 is a version of D8 that also performs optimization. R8是D8的一个版本，也可以执行优化。 It's not a separate tool or codebase, just the same tool operating in a more advanced mode. 它不是单独的工具或代码库，而只是在更高级模式下运行的同一工具。 Where D8 first parses Java bytecode into its own intermediate representation (IR) and then writes out the Dalvik bytecode, R8 adds optimization passes over the IR before its written out. D8首先将Java字节码解析为它自己的中间表示（IR），然后写出Dalvik字节码，而R8在IR上添加优化遍历，然后将其写出。

Notes for those who'd like to disable D8 (in addition to R8): 对于那些想禁用D8（除了R8的用户）的注意事项：

There's additional flag (see this blogpost ) for selecting dx (D8's predecessor): 还有一个用于选择dx（D8的前身）的附加标志（请参阅此博客文章 ）：
android.enableD8=false

Since version 3.1.2 of AGP the below deprecation warning displayed, even though it still works (tested with AGP v3.4.2): 从AGP 3.1.2版开始，即使仍然有效，也会显示以下弃用警告（已通过AGP v3.4.2测试）：

WARNING: The option 'android.enableD8' is deprecated and should not be used anymore. 警告：选项“ android.enableD8”已被弃用，不应再使用。
Use 'android.enableD8=true' to remove this warning. 使用'android.enableD8 = true'删除此警告。
It will be removed in the future AGP versions. 在以后的AGP版本中将删除它。 For more details, see https://d.android.com/r/studio-ui/d8-overview.html . 有关更多详细信息，请参见https://d.android.com/r/studio-ui/d8-overview.html 。

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